CN213250318U

CN213250318U - Intraocular silicone oil extraction device

Info

Publication number: CN213250318U
Application number: CN202021256839.9U
Authority: CN
Inventors: 文征兵; 梁莉莉; 黎燕妮; 潘如凯; 贲世军; 唐翠明; 罗俊青; 练敏; 吴家杰
Original assignee: Liuzhou Workers Hospital
Current assignee: Liuzhou Workers Hospital
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-25
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to the technical field of medical equipment, in particular to an intraocular silicone oil taking-out device, which comprises a needle head, an infusion bag and a negative pressure ball, wherein an accommodating cavity is arranged inside the needle head, an isolation tube is vertically arranged in the accommodating cavity, and two ends of the isolation tube are respectively and fixedly connected with the top wall and the bottom wall of the accommodating cavity so as to divide the accommodating cavity into a filling cavity positioned between the inner surface of the needle head and the outer surface of the isolation tube and a taking-out cavity positioned in the isolation tube; the lower surface of the needle head is fixedly connected with a needle stem communicated with the inside and the outside of the taking-out cavity; the peripheral surface of the needle head is provided with a plurality of micropores which run through the perfusion cavity; the infusion bag is filled with intraocular balance liquid and is communicated with the perfusion cavity through the infusion tube; the negative pressure ball is communicated with the taking cavity through the drainage tube; the drainage tube is provided with a switch for opening or closing the negative pressure suction effect of the negative pressure ball. The utility model discloses can be getting oily in-process, maintain safe intraocular pressure, ensure operation safety operation space.

Description

Intraocular silicone oil extraction device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to intraocular silicone oil remove device.

Background

Silicone oil is a commonly used filler in retinal detachment surgery, and is used for ensuring the healing of the retina after the repair, and the silicone oil in the eyes after the surgery needs to be taken out within 3-6 months to prevent the occurrence of complications.

The medical material commonly adopted in the intraocular silicone oil extraction technology is a silicone oil extraction bag which is produced by a glass body cutting machine manufacturer in a matching way, and the intraocular silicone oil is extracted by utilizing the continuous negative pressure generated by the glass body cutting machine and relevant equipment distributed by an oil extraction instrument bag. However, silicone oil removal is expensive; meanwhile, the possibility that liquid enters the glass cutting machine to break down in the oil taking process exists, and high maintenance cost is also generated. Therefore, there is also a manual oil extraction device made of a syringe, for example, patent No. CN00256027.5, which discloses an intraocular silicone oil drainage device comprising a suction head, a negative pressure source and a hollow handle, and since this patent sucks silicone oil by negative pressure, imbalance of intraocular pressure is easily caused during the extraction process, this patent does not have a function of specifically maintaining intraocular pressure, and the operation is not safe enough.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve the above problems, and provides an intraocular silicone oil extraction device, which can maintain safe intraocular pressure during oil extraction, and ensure safe operation space for operation.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an intraocular silicone oil extracting device comprises a needle head, an infusion bag and a negative pressure ball, wherein a containing cavity is arranged inside the needle head, an isolation tube is vertically arranged in the containing cavity, and two ends of the isolation tube are respectively and fixedly connected with the top wall and the bottom wall of the containing cavity so as to divide the containing cavity into a filling cavity positioned between the inner surface of the needle head and the outer surface of the isolation tube and an extracting cavity positioned in the isolation tube; the lower surface of the needle head is fixedly connected with a needle stem communicated with the inside and the outside of the taking-out cavity; the peripheral surface of the needle head is provided with a plurality of micropores which run through the perfusion cavity; the infusion bag is filled with intraocular balance liquid and is communicated with the perfusion cavity through the infusion tube; the negative pressure ball is communicated with the taking cavity through the drainage tube; the drainage tube is provided with a switch for opening or closing the negative pressure suction effect of the negative pressure ball.

Preferably, the infusion tube is provided with an infusion regulator for controlling the flow rate of the intraocular balance liquid, and the flow rate of the intraocular balance liquid in the infusion tube can be regulated according to the condition of the operation so as to maintain the safety and stability of the intraocular pressure.

Preferably, a flow measuring device is installed on the drainage tube to measure the flow of silicone oil, so that the negative pressure suction can be stopped in time to prevent the injury of the intraocular tissues.

Preferably, the drainage tube is characterized by further comprising a liquid collection bag for collecting silicon oil, wherein the liquid collection bag is communicated with one end, far away from the drainage tube, of the negative pressure ball through a liquid collection tube, and the silicon oil taken out is conveniently treated.

Preferably, the liquid collecting pipe is provided with a spring clip to open or close the liquid collecting pipe and prevent the silicon oil in the liquid collecting bag from being sucked and flowing back to the negative pressure ball.

Preferably, the needle is funnel-shaped, the shape of the cavity is matched with the needle, the volume of the end part of the needle close to the eyeball can be reduced, and the injury of tissues in the eyeball caused by touching the eyeball in the operation process is prevented.

Preferably, the micropores are all arranged at the small end of the funnel-shaped needle head and are uniformly distributed along the circumferential surface of the needle head, so that the perfusion effect of the intraocular balance liquid can be improved.

Preferably, the edge of the lower surface of the needle is provided with a round corner which guides the balance liquid in the eye flowing out from the micropore.

Preferably, the switch is a vent pipe communicated with the drainage pipe, when the vent pipe is communicated with the outside, the negative pressure suction effect is invalid, and the switch is in a closed state; when the vent pipe is closed, the negative pressure suction effect takes effect, and the vent pipe is in an open state.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model provides an intraocular silicone oil taking-out device, which divides an accommodating cavity into a coaxial filling cavity and a coaxial taking-out cavity by arranging an isolation tube in the accommodating cavity of a needle head; silicone oil can be sucked into the taking-out cavity from the needle stalk through the negative pressure ball; can pour into the intraocular balancing liquid that fills the intracavity into through the micropore, compare with prior art, because fill the chamber and take out the chamber and all set up in the syringe needle, and mutual isolation, can take out the in-process of intraocular silicone oil at the operation syringe needle, fill intraocular balancing liquid, maintain safe intraocular pressure, ensure operation safety operating space, and simple to use, convenience.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a side schematic view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of the needle of FIG. 2 according to the present invention;

in the attached drawings, 1, a needle head; 11. an isolation pipe; 12. filling the cavity; 13. taking out the cavity; 14. needle peduncle; 15. micropores; 2. an infusion bag; 21. a transfusion tube; 22. an infusion regulator; 221. an adjusting seat; 222. a roller; 3. a negative pressure ball; 31. a drainage tube; 32. a flow measurement member; 33. a breather pipe; 4. a liquid collecting bag; 41. a liquid collecting pipe; 42. spring clip

Detailed Description

The present invention provides an intraocular silicone oil removing device, which will be described in detail with reference to the accompanying drawings and specific examples.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, the intraocular silicone oil extracting device provided in this embodiment includes a needle 1, an infusion bag 2, and a negative pressure ball 3, wherein a cavity is disposed inside the needle 1, an isolation tube 11 is vertically disposed in the cavity, and two ends of the isolation tube 11 are respectively and fixedly connected to a top wall and a bottom wall of the cavity, so as to divide the cavity into a filling cavity 12 located between an inner surface of the needle 1 and an outer surface of the isolation tube 11, and an extracting cavity 13 located in the isolation tube 11; the lower surface of the needle head 1 is fixedly connected with a needle stem 14 communicated with the inside and the outside of the taking-out cavity 13; the circumferential surface of the needle head 1 is provided with a plurality of micropores 15 which run through the perfusion cavity 12; the infusion bag 2 is filled with intraocular balance liquid and is communicated with the perfusion cavity 12 through an infusion tube 21; the negative pressure ball 3 is communicated with the taking-out cavity 13 through a drainage tube 31; the drainage tube 31 is provided with a switch for turning on or off the negative pressure suction effect of the negative pressure ball 3.

Furthermore, the infusion tube 21 is provided with an infusion regulator 22 for controlling the flow rate of the intraocular balance liquid, so that the flow rate of the intraocular balance liquid in the infusion tube 21 can be regulated according to the condition of the operation, and the safety and the stability of the intraocular pressure can be maintained. The infusion regulator 22 in this embodiment is the prior art, the infusion regulator 22 includes the regulation seat 221, be equipped with the recess that the degree of depth becomes dark gradually on the regulation seat 221, the transfer line 21 passes the recess bottom, the recess top is provided with the spout that extends along recess length direction, and be equipped with in the recess and can follow the rolling gyro wheel 222 of spout, can adjust the distance of gyro wheel 222 peripheral face and recess bottom surface through rolling gyro wheel 222, thereby press from both sides tightly or loosen transfer line 21, reach the effect of control intraocular balance liquid velocity of flow.

Furthermore, in order to know the dosage of the taken silicone oil in time, a flow measuring element 32 can be arranged on the drainage tube 31 to measure the flow of the silicone oil, so that the negative pressure suction can be stopped in time to prevent the injury of the intraocular tissues; specifically, the flow measuring element 32 may be a turbine flowmeter belonging to a velocity flowmeter, also called a vane flowmeter, which reflects the volume flow of the fluid passing through the pipeline by measuring the rotation speed of the vane by using the relationship that the rotation angular velocity of the vane placed in the fluid is proportional to the flow velocity of the fluid.

Further, in order to solve the problem that the taken-out silicone oil is not convenient enough, a liquid collecting bag 4 for collecting the silicone oil can be further arranged, the liquid collecting bag 4 is communicated with one end of the negative pressure ball 3 away from the drainage tube 31 through a liquid collecting tube 41, the silicone oil taken out is gathered in the negative pressure ball 3, the volume of the negative pressure ball 3 is small, the silicone oil needs to be frequently treated, the liquid collecting bag 4 with the large volume is communicated through the liquid collecting tube 41, more silicone oil can be collected, and the silicone oil can be more conveniently treated.

Further, a spring clamp 42 is arranged on the liquid collecting pipe 41 to open or close the liquid collecting pipe 41, and when the silicone oil in the negative pressure ball 3 needs to be collected, the liquid collecting pipe 41 is opened to enable the silicone oil to flow into the liquid collecting bag 4; when the negative pressure suction is needed to take out the silicon oil, the liquid collecting pipe 41 is closed, and the silicon oil in the liquid collecting bag 4 is prevented from being sucked and flowing back to the negative pressure ball 3.

Furthermore, syringe needle 1 is for leaking hopper-shaped, holds the chamber shape and suits with syringe needle 1, can reduce the volume that syringe needle 1 is close to the tip of eyeball, prevents to touch the eyeball among the operation process, and the tissue in the eye is injured.

Furthermore, because the chamber is hourglass hopper-shaped, the pressure of balanced liquid in the eye in the chamber bottom is great, can all set up the tip at the syringe needle 1 that leaks hopper-shaped with a plurality of micropores 15, and arrange along the global equipartition of syringe needle 1, can improve the filling effect of balanced liquid in the eye.

Furthermore, the edge of the lower surface of the needle 1 is provided with a round angle, which guides the balance liquid in the eye flowing out from the micropore 15, so that the balance liquid can better flow into the eye.

Further, the switch is a vent pipe 33 communicated with the drainage pipe 31, when the vent pipe 33 is communicated with the outside, the negative pressure suction effect is disabled, and at the moment, the switch is in a closed state, the gas in the negative pressure ball 3 can be discharged through the vent pipe 33, so that the internal gas pressure formed by the negative pressure ball 3 and the taking-out cavity 13 is reduced; when the vent pipe 33 is closed, the negative pressure suction effect is effective, and at this time, the switch is in an open state, and the external atmospheric pressure and the internal atmospheric pressure form an atmospheric pressure difference, so that the silicone oil in the eyes can be pressed into the taking-out cavity 13.

The utility model discloses a working process and principle:

firstly, the transfusion tube 21 is closed by the transfusion regulator 22, then the needle stem 14 is inserted into the silicone oil in the eye from the sclera incision, after the position is determined, the transfusion tube 21 is opened to lead the equilibrium liquid in the eye to flow into the perfusion cavity 12 and flow out through the micropore 15 to perfuse the eye; closing the spring clamp 42 while filling, extruding the negative pressure ball 3 to extrude air in the negative pressure ball 3 through the vent, keeping the negative pressure ball 3 in a dry and flat state, covering the orifice of the vent pipe 33 by fingers, and simultaneously opening the negative pressure suction by loosening the negative pressure ball 3, wherein silicone oil in eyes can be sucked into the taking-out cavity 13 through the needle stem 14 and is input into the negative pressure ball 3 through the drainage tube 31; finally, the spring clip 42 is opened, and the silicon oil in the negative pressure ball 3 is collected in the liquid collecting bag 4.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. An intraocular silicone oil remove device which characterized in that: the infusion needle comprises a needle head (1), an infusion bag (2) and a negative pressure ball (3), wherein a containing cavity is arranged in the needle head (1), an isolation tube (11) is vertically arranged in the containing cavity, and two ends of the isolation tube (11) are respectively and fixedly connected with the top wall and the bottom wall of the containing cavity so as to divide the containing cavity into a filling cavity (12) positioned between the inner surface of the needle head (1) and the outer surface of the isolation tube (11) and a taking-out cavity (13) positioned in the isolation tube (11); the lower surface of the needle head (1) is fixedly connected with a needle stem (14) which is communicated with the inside and the outside of the taking-out cavity (13); the peripheral surface of the needle head (1) is provided with a plurality of micropores (15) which run through the perfusion cavity (12); the infusion bag (2) is filled with intraocular balance liquid and is communicated with the perfusion cavity (12) through an infusion tube (21); the negative pressure ball (3) is communicated with the taking-out cavity (13) through a drainage tube (31); and a switch for opening or closing the negative pressure suction effect of the negative pressure ball (3) is arranged on the drainage tube (31).

2. The intraocular silicone oil extraction device according to claim 1, characterized in that: an infusion regulator (22) for controlling the flow rate of the intraocular balance liquid is arranged on the infusion tube (21).

3. The intraocular silicone oil extraction device according to claim 1, characterized in that: and a flow measuring element (32) is arranged on the drainage tube (31) to measure the flow of the silicon oil.

4. The intraocular silicone oil extraction device according to claim 1, characterized in that: the liquid collecting device is characterized by further comprising a liquid collecting bag (4) used for collecting silicon oil, wherein the liquid collecting bag (4) is communicated with one end, far away from the drainage tube (31), of the negative pressure ball (3) through a liquid collecting tube (41).

5. The intraocular silicone oil extraction device of claim 4, wherein: the liquid collecting pipe (41) is provided with a spring clamp (42) to open or close the liquid collecting pipe (41).

6. The intraocular silicone oil extraction device according to claim 1, characterized in that: the needle head (1) is funnel-shaped, and the shape of the containing cavity is matched with that of the needle head (1).

7. The intraocular silicone oil extraction device of claim 6, wherein: a plurality of micropores (15) are all arranged at the small end of the funnel-shaped needle head (1) and are evenly distributed and arranged along the circumferential surface of the needle head (1).

8. The intraocular silicone oil extraction device according to claim 1, characterized in that: the edge of the lower surface of the needle head (1) is provided with a round angle.

9. The intraocular silicone oil extraction device according to claim 1, characterized in that: the switch is a vent pipe (33) communicated with the drainage pipe (31).